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27763 (1991 RN22)
Classification: Main-belt Asteroid          SPK-ID: 2027763
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2083154408518367 6.5296e-08  
a 2.259295943897694 1.7213e-08 AU
q 1.788649713329879 1.5266e-07 AU
i 4.958560433827294 7.8172e-06 deg
node 10.92139058712437 7.9364e-05 deg
peri 291.4495074748741 8.1879e-05 deg
M 275.848872867221 2.381e-05 deg
tp 2457090.444948939334
(2015-Mar-08.94494894)
8.4123e-05 JED
period 1240.389584484857
3.40
1.4175e-05
3.881e-08
d
yr
n .2902313954446099 3.3168e-09 deg/d
Q 2.729942174465508 2.0799e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      497  
   data-arc span      8242 days (22.57 yr)  
   first obs. used      1991-09-15  
   last obs. used      2014-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61209  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:26:03  

Additional Information
 Earth MOID = .780059 AU 
 T_jup = 3.587 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4 mag n/a MPO250478  

27763 (1991 RN22)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar (675)
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RN22 = 1998 UL31 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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